Results 81 to 90 of about 423,780 (329)
Rubber friction and tire dynamics [PDF]
Journal of Physics: Condensed Matter, 2010 14 pages, 29 ...
openaire +4 more sources
3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response
Advanced Engineering Materials, EarlyView.A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley +1 more source
Mechanical behaviour of fluid-lubricated faults
Nature Communications, 2019 The effect of fluid viscosity on fault mechanics is mainly conjectured by theoretical models. Here, the authors present experimental data from rock friction experiments, showing both static and dynamic friction coefficients to decrease with viscosity and
C. Cornelio +4 more
doaj +1 more source
Improving the energy efficiency of power transmissions of a rolling stock on the basis of dynamic anisotropy of frictional contact [PDF]
E3S Web of Conferences, 2019 The analysis showed the following tendencies of development and energy efficiency of designs of gearboxes for track machines: provision of a maximum level of efficiency, removal of rupture of a stream of the passed capacity, provision of a high level of ...
Shapovalov Vladimir +4 more
doaj +1 more source
Study of longitudinal vibrations of stab knife refiners [PDF]
, 2019 The subject of research is the longitudinal vibrations of stab knife refiners. A model of the fibrous layer between the rotor and stator is developed. It is shown that it is advisable to use the Maxwell-Thomson model for liquid friction of the rotor and ...
Vikharev, S. N., Zasypkina, S. A.
core
Micropatterned Biphasic Printed Electrodes for High‐Fidelity on‐Skin Bioelectronics
Advanced Functional Materials, EarlyView.Micropatterned biphasic printed electrodes achieve unprecedented skin conformity and low impedance by combining liquid‐metal droplets with microstructured 3D lattices. This scalable approach enables high‐fidelity detection of ECG, EMG, and EEG signals, including alpha rhythms from the forehead, with long‐term comfort and stability.
Manuel Reis Carneiro +4 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Most matter is nominally frozen in the polar regions or space, and liquid crystal materials are no exception. Consequently, soft actuators, including liquid crystal elastomers (LCEs), are inoperative under such extreme cold in response to stimuli, as their motion relies on mechanical deformation.
Hyeonseong Kim +5 more
wiley +1 more source
Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels
Advanced Functional Materials, EarlyView.Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula +1 more
wiley +1 more source
Study on the Calculation Model of Free Point Depth of Circular Arc Well
Shiyou jixie, 2018 The calculation of the free point depth of tubular is of great significance to the entire workover process. The previous calculation model does not take the well inclination and dynamic friction factor into consideration, resulting in a large error ...
Xu Qinghai +4 more
doaj
Rotational dynamics and friction in double-walled carbon nanotubes
, 2006 We report a study of the rotational dynamics in double-walled nanotubes using molecular dynamics simulations and a simple analytical model reproducing very well the observations.
A. Einstein +5 more
core +1 more source